Effects of different particle size of spinel and Y2O3 additive of the periclase-spinel refractory on the sintering densification and corrosion resistance to copper smelting slag

Regulating the pore structure of periclase refractories by adding Y2O3 to enhance corrosion resistance for copper slag

“…In recent years, researchers have begun to study chromium‐free refractories for copper‐smelting furnace lining, mainly focusing on the development of magnesia‐alumina spinel materials 21–24 . For instance, Quan et al 21 .…”

“…In recent years, researchers have begun to study chromium‐free refractories for copper‐smelting furnace lining, mainly focusing on the development of magnesia‐alumina spinel materials 21–24 . For instance, Quan et al 21 . reported that copper slag reacted with spinel materials to form a reaction layer (MgFe 2 O 4 and Mg 2 SiO 4 ) that prevented penetration.…”

“…In recent years, researchers have begun to study chromium-free refractories for copper-smelting furnace lining, mainly focusing on the development of magnesiaalumina spinel materials. [21][22][23][24] For instance, Quan et al 21 reported that copper slag reacted with spinel materials to form a reaction layer (MgFe 2 O 4 and Mg 2 SiO 4 ) that prevented penetration. However, the intergranular binding phase CaMgSiO 4 dissolved in the slag during slag erosion, which provided penetration paths for the copper slag.…”

Improved oxidation resistance while maintaining slag corrosion resistance of MgO–SiC–C refractories with moderate amounts of liquid phase

“…[15][16][17][18][19] In addition, the viscosity of sulfide-containing matte slag is significantly lower compared to other slags, causing serious infiltration into the refractories. Although studies have shown that the addition of spinel, 20 aggregates, 21 rare earth oxides (Y 2 O 3 ), 22 Si 3 N 4 , 23 and ZrO 2 nanoparticles 24 can significantly improve the oxidation resistance and slag corrosion resistance, the high cost of these additives deters metallurgical enterprises to procure those lining materials on a long term.…”

Insight into Interaction Behavior of CeAlO3 Substrate and CaO‐Al2O3‐Based Slag

“…[9] However, Wang et al [10] found no MgAlO 4 layer formed during the dissolution of MgO. Additionally, the interaction behavior of FeCr 2 O 4 , [11] MgAl 2 O 4 , [12][13][14] and rare-earth monosilicates [15] in the melt has been investigated. CeAlO 3 is the main inclusion causing the clogging of rare earth steel, and it should be removed into the slag.…”